Structure of a coating machine unwinding device with automatic web correction function

By introducing an automatic correction and smoothing mechanism into the unwinding device of the coating machine, and utilizing laser sensors and electric telescopic rods, the problem of fabric roll skewing was solved, achieving automatic correction and wrinkle smoothing of the fabric, thus improving the coating effect.

CN224429571UActive Publication Date: 2026-06-30NANJING JUNHONG NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING JUNHONG NEW MATERIAL CO LTD
Filing Date
2025-08-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional unwinding devices lack the function of correcting deviations during fabric roll unwinding, causing the fabric roll to enter the coating machine at an angle, which affects the coating effect.

Method used

The coating machine unwinding device with automatic correction function includes a Z-shaped fixing seat, a chute, a correction mechanism and a smoothing mechanism. It uses a laser sensor and an electric telescopic rod to realize automatic correction and wrinkle smoothing of the fabric.

Benefits of technology

It enables automatic fabric correction and wrinkle smoothing, ensuring coating effect and improving spraying accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a coating machine unwinding device structure with automatic deviation correction function, including a Z-shaped fixing base and a groove formed at its bottom. The top of the Z-shaped fixing base has a rectangular opening, and the top surface of the Z-shaped fixing base has a strip-shaped hole. A fabric roll is placed on the top of the groove. The device also includes a deviation correction mechanism: the deviation correction mechanism includes a triangular fixing base slidably connected to the top of the groove. An electric telescopic rod is fixedly connected to the front side of the triangular fixing base. The electric telescopic rod is linearly connected to a signal converter via a circuit. A fixed roller is arranged on the left side of the triangular fixing base, and a laser sensor is arranged on the left side of the fixed roller. A scale groove is arranged on the left side of the laser sensor. The coating machine unwinding device structure with automatic deviation correction function disclosed in this utility model has the effect of automatically correcting deviations, smoothing wrinkles, and preventing overlaps during fabric unwinding.
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Description

Technical Field

[0001] This utility model relates to the field of unwinding and correction technology, and in particular to a structure of an unwinding device for a coating machine with automatic correction function. Background Technology

[0002] Coating machines are mainly used for surface coating processes of films, cloth rolls, etc. This machine coats a roll of substrate with a layer of adhesive, paint or ink with a specific function, and after drying, cuts it into sheets or rolls it up. By placing the cloth roll on the unwinding device, one end enters the inside of the coating machine for coating and then rolls it up, the coating of the entire roll of cloth is achieved.

[0003] Traditional unwinding devices only fix the fabric roll and lack the ability to correct deviations during unwinding. This can cause the fabric roll to enter the coating machine at an angle, resulting in the coating material being sprayed onto the fabric roll surface at an angle and affecting the coating effect.

[0004] For example, during the production of fabric rolls, mechanical or operational reasons may cause the rolled fabric to become skewed, which in turn leads to skew during subsequent unwinding. If the unwinding fabric is not corrected, it will affect the coating effect, resulting in the scrapping of a section of fabric or the entire roll of fabric. Utility Model Content

[0005] This utility model discloses a coating machine unwinding device structure with automatic deviation correction function, which aims to solve the technical problem that traditional unwinding devices only fix the cloth roll and lack deviation correction during unwinding, which causes the cloth roll to enter the coating machine skewed, and thus causes the coating on the surface of the cloth roll to be skewed, affecting the coating effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coating machine unwinding device structure with automatic deviation correction function includes a Z-shaped fixing base and a chute formed at its bottom. The top of the Z-shaped fixing base has a rectangular opening, and the top surface of the Z-shaped fixing base has a strip-shaped hole. A fabric roll is placed on the top of the chute. The device also includes: a deviation correction mechanism: the deviation correction mechanism includes a triangular fixing base slidably connected to the top of the chute. An electric telescopic rod is fixedly connected to the front side of the triangular fixing base. The electric telescopic rod is linearly connected to a signal converter via a circuit. A fixed roller is arranged on the left side of the triangular fixing base, and a laser sensor is arranged on the left side of the fixed roller. A scale groove is arranged on the left side of the laser sensor; a smoothing mechanism: the smoothing mechanism is arranged inside the rectangular opening.

[0008] In this solution, a correction mechanism can correct any deviation in the fabric during unwinding, ensuring the coating effect of the subsequent coating machine. When the fabric roll passes through two fixed rollers, it is laid flat on the bottom surface inside the rectangular opening due to the constraint of the fixed rollers. When the fabric is misaligned, it will block the laser emitted from the bottom of the laser sensor. The laser sensor then sends a signal to the signal converter. The signal converter quickly processes the signal and controls the electric telescopic rod to extend and retract, thereby driving the triangular fixing seat to slide along the slide groove. By moving the position of the triangular fixing seat, the fabric unwinding is corrected. The sliding design of the laser sensor facilitates positioning of fabrics of different widths, improving applicability.

[0009] In a preferred embodiment, the smoothing mechanism includes a slide rod slidably connected inside the rectangular opening, the slide rod having a spring on its surface, a scraper fixedly connected to the bottom end of the slide rod, a connecting plate fixedly connected to the top end of the slide rod, and a handle fixedly connected to the top of the connecting plate.

[0010] The smoothing mechanism can smooth out the wrinkles and overlaps of the fabric to ensure the subsequent coating effect. When the wrinkled and overlapping fabric passes through the rectangular opening, the scraper, which is set at a 45-degree angle, can smooth it out. The slide bar at the top of the scraper can provide downward pressure to the scraper, so that it adheres to the fabric surface and smooths out the wrinkles and overlaps.

[0011] As described above, a coating machine unwinding device structure with automatic deviation correction function includes a Z-shaped fixing base and a chute at its bottom. The Z-shaped fixing base has a rectangular opening at its top and a strip-shaped hole on its top surface. A fabric roll is placed on top of the chute. The device also includes: a deviation correction mechanism comprising a triangular fixing base slidably connected to the top of the chute; an electric telescopic rod fixedly connected to the front of the triangular fixing base; a signal converter linearly connected to the electric telescopic rod via a circuit; a fixed roller on the left side of the triangular fixing base; a laser sensor on the left side of the fixed roller; and a scale groove on the left side of the laser sensor. A smoothing mechanism is located inside the rectangular opening. This invention provides a coating machine unwinding device structure with automatic deviation correction function, which automatically corrects deviations, smooths wrinkles, and prevents overlaps during fabric unwinding. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a coating machine unwinding device with automatic deviation correction function proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the correction mechanism of a coating machine unwinding device with automatic correction function proposed in this utility model.

[0014] Figure 3 This is a diagram illustrating the structure of a laser sensor for a coating machine unwinding device with automatic deviation correction function, as proposed in this utility model.

[0015] Figure 4 This is a schematic diagram of the smoothing mechanism of a coating machine unwinding device with automatic correction function proposed in this utility model.

[0016] In the attached diagram: 1. Z-shaped fixing seat; 2. Slide groove; 3. Rectangular through-hole; 4. Strip hole; 5. Fabric roll; 6. Triangular fixing seat; 7. Electric telescopic rod; 8. Signal converter; 9. Fixed roller; 10. Laser sensor; 11. Scale groove; 12. Slide rod; 13. Spring; 14. Scraper; 15. Connecting plate; 16. Handle. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] The coating machine unwinding device structure with automatic deviation correction function disclosed in this utility model is mainly used in scenarios where the coating roll needs to be corrected during the unwinding process of the coating machine.

[0019] Reference Figure 1 , Figure 2 and Figure 4 A coating machine unwinding device structure with automatic correction function includes a Z-shaped fixing seat 1 and a chute 2 opened at its bottom. The top of the Z-shaped fixing seat 1 has a rectangular opening 3 and a strip hole 4. A cloth roll 5 is arranged on the top of the chute 2. It also includes: a correction mechanism: the correction mechanism includes a triangular fixing seat 6 slidably connected to the top of the chute 2. An electric telescopic rod 7 is fixedly connected to the front side of the triangular fixing seat 6. The electric telescopic rod 7 is linearly connected to a signal converter 8 through a line. A fixed roller 9 is arranged on the left side of the triangular fixing seat 6. A laser sensor 10 is arranged on the left side of the fixed roller 9. A scale groove 11 is arranged on the left side of the laser sensor 10. A smoothing mechanism: the smoothing mechanism is arranged inside the rectangular opening 3.

[0020] Specifically, when the fabric roll 5 passes through the two fixed rollers 9, it is able to be laid flat on the bottom surface inside the rectangular opening 3 under the restriction of the fixed rollers 9. When the fabric is offset, it will block the laser emitted from the bottom of the laser sensor 10. Then the laser sensor 10 sends a signal to the signal converter 8. Under the rapid processing of the signal converter 8, the electric telescopic rod 7 is controlled to extend and retract, which in turn drives the triangular fixing seat 6 to slide along the slide groove 2. By moving the position of the triangular fixing seat 6, the fabric unwinding is corrected. The sliding design of the laser sensor 10 makes it easy to position fabrics of different widths.

[0021] The triangular fixing seat 6 is slidably connected to the top of the slide groove 2 via a bottom slider, and the electric telescopic rod 7 is fixedly connected to the bottom front side of the Z-shaped fixing seat 1 via a motor seat. The slider at the bottom of the triangular fixing seat 6 increases the smoothness of the sliding and prevents shaking during sliding from affecting the unwinding tension.

[0022] There are two fixed rollers 9, which are rotatably connected to the right side of the rectangular opening 3. The scale groove 11 is opened on the top surface of the Z-shaped fixing seat 1. The two fixed rollers 9 fix the position of the fabric so that it fits into the inside of the rectangular opening 3, which is convenient for subsequent inspection.

[0023] The laser sensor 10 has a pointer on its top, which is slidably connected inside the strip hole 4. The laser sensor 10 is linearly connected to the signal converter 8 via a circuit. The pointer and the scale groove 11 work together to make it easy to adjust the position of the laser sensor 10 according to the width of the fabric, thus making it suitable for multi-size fabric rolls 5.

[0024] Reference Figure 1 and Figure 4 In a preferred embodiment, the smoothing mechanism includes a slide rod 12 slidably connected inside the rectangular opening 3, a spring 13 provided on the surface of the slide rod 12, a scraper 14 fixedly connected to the bottom end of the slide rod 12, a connecting plate 15 fixedly connected to the top end of the slide rod 12, and a handle 16 fixedly connected to the top of the connecting plate 15.

[0025] Specifically, when wrinkled or overlapping fabric passes through the rectangular opening 3, the scraper 14, which is inclined at a 45-degree angle, can smooth it out. The slide bar 12 at the top of the scraper 14 can provide downward pressure to the scraper 14, making it adhere to the fabric surface.

[0026] One end of the spring 13 is fixedly connected to the top of the scraper 14, and the other end of the spring 13 is fixedly connected to the top of the inside of the rectangular opening 3. The inner side of the scraper 14 is set with an slant, and the bottom of the scraper 14 is attached to the top of the fabric roll 5. The spring 13 enables the scraper 14 to be attached to the surface of the fabric to achieve a smoothing effect. The slant design of the scraper 14 can automatically smooth out the overlapping fabric in contact with it.

[0027] Reference Figure 1 and Figure 2 In a preferred embodiment, the fabric roll 5 is rotatably connected to the top of the triangular fixing seat 6 via a drive roller with a snap fastener, and one end of the fabric roll 5 passes between two fixing rollers 9.

[0028] Specifically, the fabric roll 5 is fixed by the triangular fixing seat 6. When the triangular fixing seat 6 moves, the fabric roll 5 also moves, thus achieving the effect of correction.

[0029] Working principle: When using the device, fix the fabric roll 5 on the top of the triangular fixing base 6, with one end passing between the two fixing rollers 9. At the same time, pull the handle 16 upward, which will drive the scraper 14 upward through the slide rod 12, allowing the fabric to pass through the bottom of the scraper 14. Release the handle 16, and the slide rod 12 will drive the scraper 14 to automatically adhere to the fabric surface for subsequent smoothing work. At the same time, maintain the tension of the fabric roll 5. Then, adjust the laser sensor 10 according to the width of the fabric to make the laser stick to the edge of the fabric. After the fabric roll 5 is placed, the fabric roll 5 passes through... When the coating machine is in operation, if the fabric deviates, it will block the laser emitted from the bottom of the laser sensor 10. The laser sensor 10 will then send a signal to the signal converter 8. The signal converter 8 will quickly process the signal and control the electric telescopic rod 7 to extend or retract, thereby driving the triangular fixing seat 6 to slide along the slide groove 2. By moving the position of the triangular fixing seat 6, the fabric unwinding is corrected. When the fabric with wrinkles or overlaps passes through the rectangular opening 3, the scraper 14, which is set at a 45-degree angle, can smooth it out to ensure the flatness of the fabric.

[0030] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A coating machine unwinding device structure with automatic deviation correction function, comprising a Z-shaped fixed seat (1) and a chute (2) opened at the bottom of the Z-shaped fixed seat (1), a rectangular through opening (3) is opened at the top of the Z-shaped fixed seat (1), a strip-shaped hole (4) is opened at the top surface of the Z-shaped fixed seat (1), and a cloth roll (5) is arranged at the top of the chute (2), characterized in that, Also includes: Correction mechanism: The correction mechanism includes a triangular fixed seat (6) slidably connected to the top of the slide groove (2), an electric telescopic rod (7) fixedly connected to the front side of the triangular fixed seat (6), a signal converter (8) linearly connected to the electric telescopic rod (7) through a line, a fixed roller (9) is provided on the left side of the triangular fixed seat (6), a laser sensor (10) is provided on the left side of the fixed roller (9), and a scale groove (11) is provided on the left side of the laser sensor (10). Smoothing mechanism: The smoothing mechanism is located inside the rectangular opening (3).

2. The unwinding device structure of the coating machine with the automatic deviation correction function according to claim 1, characterized in that, The triangular fixing seat (6) is slidably connected to the top of the slide groove (2) via a bottom slider, and the electric telescopic rod (7) is fixedly connected to the bottom of the front side of the Z-shaped fixing seat (1) via a motor seat.

3. The unwinding device structure of the coating machine with the automatic deviation correction function according to claim 2, characterized in that, There are two fixed rollers (9), which are rotatably connected to the right side of the rectangular opening (3) and the scale groove (11) is opened on the top surface of the Z-shaped fixed seat (1).

4. The unwinding device structure of the coating machine with the automatic deviation correction function according to claim 2, characterized in that, The laser sensor (10) is provided with a pointer on its top. The pointer on the top of the laser sensor (10) is slidably connected inside the strip hole (4). The laser sensor (10) is linearly connected to the signal converter (8) through a line.

5. The unwinding device structure of the coating machine with the automatic deviation correction function according to claim 1, characterized in that, The smoothing mechanism includes a slide rod (12) slidably connected inside the rectangular opening (3), a spring (13) is provided on the surface of the slide rod (12), a scraper (14) is fixedly connected to the bottom end of the slide rod (12), a connecting plate (15) is fixedly connected to the top end of the slide rod (12), and a handle (16) is fixedly connected to the top of the connecting plate (15).

6. The unwinding device structure of the coating machine with the automatic deviation correction function according to claim 5, characterized in that, One end of the spring (13) is fixedly connected to the top of the scraper (14), and the other end of the spring (13) is fixedly connected to the top inside the rectangular opening (3). The inner side of the scraper (14) is set with an incline, and the bottom of the scraper (14) is attached to the top of the cloth roll (5).

7. The structure of a coating machine unwinding device with automatic deviation correction function according to claim 1, characterized in that, The fabric roll (5) is rotatably connected to the top of the triangular fixing seat (6) via a transmission roller with a buckle, and one end of the fabric roll (5) passes between the two fixing rollers (9).